ASTM A307 Grade A Hex Bolts

ASTM A307A Hex Bolts are versatile fasteners designed for a wide range of applications that require a reliable and secure connection. These bolts are manufactured to meet the stringent specifications set by ASTM A307A, ensuring consistent quality and performance.

Constructed from carbon steel, ASTM A307A hex bolts offer excellent strength and durability. They are available in various sizes, thread pitches, and lengths to accommodate different project requirements. The hexagonal head design allows for easy installation and removal using a standard wrench or socket, providing convenience and efficiency.

With a plain, zinc-plated or hot-dip-galvanized finish these hex bolts offer good corrosion resistance, protecting them from rust and other forms of degradation. This makes them suitable for both indoor and outdoor applications, including construction, machinery, and general repairs.

ASTM A307A hex bolts are known for their reliable performance and adherence to industry standards. They provide a secure and stable connection, ensuring the integrity and longevity of the assembled components.

When it comes to choosing a dependable fastening solution, ASTM A307A Hex Bolts from our catalog are the ideal choice. With their high-quality construction, various size options, and corrosion resistance, they are suitable for a wide range of projects and applications.

Bay Standard Manufacturing imports and stocks the following size ranges and finishes:

Machine Bolts
machine bolt

ASTM A307 Grade A Carriage Bolts

ASTM A307A Carriage Bolts are specialized fasteners designed for applications that require a secure and aesthetic connection. These bolts are manufactured to meet the stringent specifications set by ASTM A307A, ensuring consistent quality and performance.

Constructed from carbon steel, ASTM A307A carriage bolts offer excellent strength and durability. They feature a square neck under the round head, which prevents the bolt from turning when tightening the nut. This design is particularly useful in applications where access to the back of the bolt is limited.

With a plain, zinc-plated or hot-dip-galvanized finish, these carriage bolts offer good corrosion resistance, protecting them from rust and other forms of degradation. This makes them suitable for both indoor and outdoor applications, including wood-to-wood construction, furniture assembly, and general repairs.

ASTM A307A carriage bolts are available in various sizes, thread pitches, and lengths to accommodate different project requirements. The square neck and round head provide a clean and finished appearance, making them an ideal choice for applications where aesthetics are important.

When it comes to choosing a reliable and visually appealing fastening solution, ASTM A307A Carriage Bolts from are the perfect choice. With their high-quality construction, corrosion resistance, and square neck design, they ensure a secure and visually pleasing connection for a variety of projects and applications.

Bay Standard Manufacturing imports and stocks the following size ranges and finishes:

machine bolts image
images of machine bolts

ASTM A307 Grade A Lag Bolts

ASTM A307 Grade A Lag Bolts are heavy-duty fasteners designed for applications that require a secure and robust connection. These bolts are manufactured to meet the stringent specifications set by ASTM A307 Grade A, ensuring exceptional quality and performance.

Constructed from carbon steel, ASTM A307 Grade A lag bolts offer excellent strength and durability. They feature a hexagonal head and a sharp, pointed tip, allowing for easy installation using a standard wrench or socket. The sharp tip helps to penetrate wood or other materials, providing a strong and reliable connection.

With a plain, zinc-plated, or hot-dip-galvanized finish, these lag bolts offer good corrosion resistance, protecting them from rust and other forms of degradation. This makes them suitable for both indoor and outdoor applications, including construction, woodworking, and general repairs.

ASTM A307 Grade A lag bolts are available in various sizes and lengths to accommodate different project requirements. The hexagonal head design provides a large surface area for applying torque, ensuring a secure and stable connection.

When it comes to choosing a dependable and robust fastening solution, ASTM A307 Grade A Lag Bolts are the perfect choice. With their high-quality construction, corrosion resistance, and sharp tip, they ensure a secure and long-lasting connection for a variety of projects and applications.

Bay Standard Manufacturing imports and stocks the following size ranges and finishes:

lag bolt
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Chemical and Mechanical

Chemical and Mechanical Req. for ASTM A307A Bolts

Material Grade: Low Carbon Steel – 60,000 PSI Min Tensile

Chemical Requirements (%)

Carbon Max0.29
Manganese Max1.2
Phosphorus Max0.04
Sulfur Max0.15

Mechanical Requirements

Tensile (KSI)Min: 60 / Max: -
Elongation in 2" Min (%)Min: 18 / Max: -
Hardness BrinellMin: 121 / Max: 241
Hardness RockwellMin: 69 / Max: 100

Recommended Hardware

Size in Inches1/4 to 1 1/2 or 1-5/8 to 4"
NutsA563A Hex or A563A Hvy Hex
WashersUnspecified
Group 1
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